## Trigonometry (10th Edition)

$v = 0.012~cm/s$
The minute hand of a clock moves through an angle of $2\pi$ radians in a time of 3600 seconds. We can find the angular speed: $\omega = \frac{\theta}{t}$ $\omega = \frac{2\pi~rad}{3600~s}$ $\omega = \frac{\pi}{1800}~rad/s$ We can find the linear speed: $v = \omega ~r$ $v = (\frac{\pi}{1800}~rad/s)(7~cm)$ $v = 0.012~cm/s$